US1372173A - Paper-interfolding machine - Google Patents

Description

W. T. LAZAR.

PAPER INTERFoLmNG MACHINE.

APPLICATION FlLED AUG.3, 1920.

K121215611221 MM.V 22, 1921.

4 SHEETS--SHEET l.

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w. 1. 'LAZAHI PAPER INTERFOLDNG MlpXCfIINEl APPLICATION FILEDAUC 3| 1920.

E@ MLVWQ 'Y 3., .Patented Mar. 22, @EL

4SHEETS-SHEE`| 2.

APPLICATION FILED AUG.3, i920.

W. T. LAZAR.

PAPER INTERFULDING MACHINEt Patented Mr.22`,1921. l

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PAPER INTERFOLDING MACHINEg APPLICATION man Auw. 1920.

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ne U Il l wheel 43 being secured to the journal 4l at the opposite end of theroll 2 for hand operation in threading the machine and in drivingroll and of therolls 26, each of said 1gears 47 being arranged to mesh with thegear 42 of the coperating folder roll `2 whereby each cutter roll 26is driven in opposite direction to thecomplementary folder roll 2. In my present practice i have made thefolder rolls 2 and'outterrolls 26, together with thegears 42 and 47, of equal diameten thereby obtaining the same peripheral speed for each roll, but, rolls of any i size provided with suitable gears to obtain the same peripheral speed may be substituted if desired. j

Powerdriver feed rolls 51, provided with journals '52, are rotatably mounted in thehousing 1 and arranged to be driven attire same peripheral speed as thefoldigxnlls 2 andcutting rolls 26 by means of pinions 53engaging gears 54 provided onfthefeed roll journals 52 andgears 56 mounted upon the journals'41 of thefolder rolls 2 at the end opposite ,thedriving gears 42. Free rotating feed/rolls 57 are rotatably mounted adjacent thepower drivenrolls 51 in coperating relation thereto for feedingthepaper ebs 32 `to the cutting and feeding rolls at t e required speed thereby insuring against .displacement of the severed vends of pa er during the interfolding process. xAn iler roller 58 is 'suitable mounted above oneset of the -feed rollers 51 and 57 whereby bothpaper webs 32 maybe supplied from one end of the machine. -E

In operation my invention is asfollowsj: The paper webs 32A are threadedbetween the several rolls as vshown in Fig. 1 ofthe drawings. .When owerf is applied te the driv` ing roll the 'older rolls 2, together with their coperatinglcutter rolls 26 are :simultaneously driven iuoppositel directions at equal peripheral speed. Thecutter rolls 26 are arrangedin a manner to direct thecutter blades 29 to enter between the spaced folder` bars 4, thereby severing a sheet ofpaper 33 from the paper -web 32; The diametncally opposed cutter .blades 29 and folder blades 4 caused twosheets 33 to be severed from each web' 32 at each revolution of the rolls. The entrance of thelcutter 29 between the folderv bars '4 `causes the ends 34 of thesheets 33 to be turned inwardly between s aid folder bars Mind engaged by the piercing points 6 and carried forward during the succeeding period of rotation.

Thefolder rolls 2 are arranged in such manner that each pair of folder blades 4 will register with a coperatin gripping jaw recess 17 of theadjacent roll 2 during rotation. The slidablyv mounted ,folder blades 4 are normally inclosed within the slots 3. -As therolls 2 are rotated therollers 8 engage thecams 9, thereby -1noving the `folder bar 7 outwardly to bring the folder blades 4 into operative position, severing theweb 32 and enga ing the severed ends 34 of thesheets 33. he resilient packing 31 is provided adjacent the cutter blades to permit the points 6 to pierce the ends 34 of thesheets 33 as severed from theweb 32. fis rotation is continued the folder bar 7 is `further outwardly displaced to cause the end folder blades 4 to enter the jaw recess 17; As the 'cutting elementsjof the two coperating sets. o rolls are ."arranged to operate alternately, the severed ends 34 of oneweb 32 will be brought opposite the lateral median line of the sheet severed from the opposite web. .In this manner the folder bars 4, engaging the severed ends of oneweb 32, operates to fold said severed ends into thev opposite.sheet 33 at the median line by entering the jaw Irecess 17.l

Themovable jawV 18 which is normally maintained inclosedposition is caused to open to admitthefolder blades 4 by engagei: ment of ther rollexs23 withcams 24.' At

the instant theQfolderlblades l4 reach the eXtreme-point of entrance-within the open jaw recess 17,- tl1evcai`n24 releases the roller` 23,/thereby-causing themovable jaw 18 to engage a33i-,and the severed end 34,

the-folder barj bein simultaneously re- In thismeuneries eets 33 are alternately severed from thetwowebs 32 and successivclyfolded`l at v.the middle to incluse they severedends 34ofsheets 33 severed from the opposite lweb32.j he tensiouof the springs 11 is-enough to normally retain "the ar's,7 seated within .the slots 3. As the"-folder bars are withdrawn from the extended position as thev rollers Spass the high points of thecams 9 the return is eushvionedby Ttlienspgings 12,

' thereby'preventingl'iny sharp impact with theroll 2. `Iri this manner noise is prevented and wear and tear on the machine greatly reduced. f

The foldedsheets 33 are released when theroller 23 engages a second cam 25 operating to open the jaw -18 as rotation continnes. 4

Suitable strippers 61 are mounted adjacent thefolder rolls 2 in engaging reluti`on withannular grooves 62 formed in the surface of thefolder rolls 2.. Conveyintapes 63 are operatively mounted below the leased-to, rdisengage te severed ends 34.

entier rolls rotatably mounted adjacent the foldel' rolls; power driven feed rollers zu ranged to feed a continuous paper wel) between euch 'older roll and the corresponding cutter xoll; L pair of cutter blades mounted upon each cutter roll, seid cutter blades l eing arranged to engage the spaced felder blades to sever sheets of paper from said continuous webs of peper; piercing points formed upon the folder blades to engage the seveed ends of paper and means for :Lemaing said 'foldel` blades o interlold said severed ends within the fold of the laterally folded sheet; and means for 'tlldl'mviug Said folder blmles to release 'the sevend ends from llxe 'piercing' points.

ln witness .vlxe'eol' l hereunlo Sel; my' eig Datum.

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